We just got back from our 10 day Christmas vacation in Nosara a few days ago. The house was as advertised, probably better. Very spacious, clean and modern. Tons of closet and drawer space etc. Kitchen well equipped. We had a few small issues, to be expected, but guessing each were due to things going offline/resetting after power outages. We didnt notice any construction noise from across the street, so they must be further along in the project.
We only had one meaningful power outage (typical all across Costa Rica), which lasted a 2-3 hours, and other smaller ones for 10-30 mins a few other time. The outages caused a few issues (pool filter wasnt working, electric front gate wouldnt operate properly, fridge would not turn on), but Tiffany the property manager was very responsive and all issues were dealt with very quickly.
The pool and outdoor area was like a high end hotel, very relaxing, set in the middle of your own private jungle. Note, you will need to use the pole/net to clean out some leaves and other tree debris that falls in the pool each morning, but only takes a few minutes.
The property is well fenced/walled and we felt 100% safe at all times (we did set off the alarm by mistake and a uniformed guard on a motorcycle appeared in under 2 minutes, which was quite impressive).
Internet was lightening fast, and both TV's were all set up with various streaming services (Disney/Netflix/Apple/Prime etc).
Air conditioning in every room, icey cold.